private static void addToPQ(PriorityQueue pq)
        {
            string input = "";
            int toAdd = 0;
            Console.Out.WriteLine("Enter an integer value you want to add to the priority queue: ");

            input = Console.In.ReadLine();
            if (!input.Equals("none"))
            {
                toAdd = Convert.ToInt32(input);

                pq.addItem(toAdd);

                Console.Out.WriteLine(input + " was added to priority queue.");
                pq.printPQueue();
            }
        }
        private static void removeFromPQ(PriorityQueue pq)
        {
            int removed = 0;

            if (!pq.isEmpty())
            {
                removed = pq.removeItem();
                Console.Out.WriteLine(removed.ToString() + " was removed from the priority queue.");
                pq.printPQueue();
            }
            else
            {
                Console.Out.WriteLine("Priority Queue is empty. No item was removed");
            }
        }